Underscoring device for printing forms



,559,074 C- CHLSHOLM I uuosasconmepmvzcs FOR manna rpm Filed: Jan. 26, 1925 auvent @4/ arm-.9.

Patented Oct. 27, 1925.

UNITED STATES P, .OFricE.

CLIFTON CHISHOLM, cLEvEL nn, 01110, ASSIGNOR ro- THE AMERICAN MULT'I- GRAPH COMPANY, or CLEVELAND, HIO,'A CORPORATION or or'no.

UNDERSCORING FOR PRINTING FORMS.

Application filedftfanuary 26,1925. serial No. 4,764."

To all whom it may 00%06751.

'Be it known that I, CLIFTON OHISHOLM,

a citizen of the United States, residing at Cleveland, in the county ofCuyahoga and State of Ohio, have invented a certain new and useful Improvement in an Underscoring Devicefor Printing Forms, of which the following is a full, clear, and exact de-. scription, reference being had to the accompanying drawings.

My prior Patent No. 1,438,580 granted December 12, 1922, shows and claims a printing form comprising a holder having rows of upstanding projections thereon, and flanged embossed printing strips resting. on the projections and having their flanges ex tending behind them. By that means I am enabled to very readily carry a page form which may be'mounted on a rotary'printing drum. Itis frequently desirable in printing from such a form to print horizontal rule lines between rows of characters, either in underscoring certain words of the printing matter or in making up ruled forms. 25 The object of the present invention is to provide a rule .or underscoring member adapted to-be readily mounted on a form of the kind described and print rule lines parallel with the type lines.

I have found that I can accomplish the desired horizontal ruling by providinga rule which is adapted to be mounted be tween successive embossed strips and rest 0n theholder between the strips, standing with its surface the same printing height as the characters on the strips. By enlarging the lower portion of such rule so that it engages the inwardly inclined 'undersides of the flanged strips I prevent the rule moving radially of the form, and thus maintain it in place. The friction of the rule with the holder and the adjacent embossed strips is outwardly sutficient to prevent the rule shifting longitudinally, though suitable stopping clips or plugs may be inserted at the ends of the rule if desired.

My invention'comprises the combination with the holder and printing strips, of a rule mounted between adjacent strips and resting against the holder. It comprises also .the feature of an enlarged bottom portion of the rule engaging the under sides of the strip flanges; also the more particular embodiment of the invention illustrated in the drawing and hereinafter specifically. described.

Inthe. drawing, F ig. 1 is an end view of a flexible blanket made of sheet metal and ,1

having. parallel f rows of upstanding projections pverlain by embossed flanged strips between certain of which my rules are shown; Fig. 2 is a perspective of the rule alone; Fig.3 is a perspective of a portion ofthe blanket with printing strips thereon and'gone of the rules in place between the adjacent strips. The three views are on different scales.

In Figs. 1 and 3, A represents a suitable flexibleblanket 'of metal, adapted tobe held in anysuitable manner on a rotary printing drum. Stamped up from this blanket are parallel rows of projections with overhang ing edges. I have shown the projections in the form of raised buttons a, as claimed in Patent No. 1,438,58i of William J. Demming and I have shown between these buttons raised corrugations a, as' claimed in Patent No; 1,438,582 of B. J; Craig. The printing strips designated B aresheet metal members having upwardly stamped embossed characters Z) and having their edges Z) flangeddownwardly and inwardly. Suchstrips rest ona row of buttons a and corrugations w, whilethe flanges b extend beneaththo-"overhanging edges of the buttons a.- V 1 My underscoring strip C, shown in perspective iii-Fig. 2, comprises a single metal member adapted for mounting between adjacent embossed strips B. This underscoringstrip has a parallel-sided upper portion 0 narrow enough to stand between the most proximate portions of adjacent printing strips while beneath this is an enlarged porti-on 0' substantially triangular in cross-section, which occupies the space between adjacent flanges b of the strips, substantially filling such space. The total height of the rule strip is such that when the bottom of the strip rests on the blanket, the top of the strip is in the same printing plane, or cylindrical surface, as the printing characters.

While I have shown my rule as mounted on a curved blanket adapted to be carried on a drum, the rule may be used on a flat blanket. In either case the upper portion of the rule is made narrow enough to slide into the available space between adjacent printing strips while the base portions are large enough to substantially fill the avail able space between the flanges of adjacent strips and the blanket. Accordingly though these rules may be readily slid longitudinally into place, the friction against the blanket and printing strips is sufficient, if the rule has the preferred cross-sectional dimensions, to prevent it being inadvertently shifted from position.

Having thus described my invention, I claim:

1. The combination, with a holder having raised portions thereon and printing strips overlying such portions, of a. rule mounted between the strips and resting on the holder between the raised portions thereof.

2. The combination of a holder having raised projections, printing strips overlying the projections, and a rule mounted between the strips and resting on the holder and provided with means for holding itself in place.

3. The combination of a form holder, flanged printing strips mounted thereon, and a rule strip mounted between adjacent embossed strips and engaging the flanges thereof and resting at its inner edge against the holder.

4. The combination with a form holder having raised overhanging projections thereon, of embossed flanged printing strips mounted on the projections with their flanges extending beneath the overhanging portions thereof. and a rule strip mounted between adjacent embossed strips and engaging the under-face of flanges thereof and resting at its base against the holder.

5. The combination of a sheet metal form holder having stamped-up buttons arranged in parallel rows, the edges of the buttons at the opposite sides of the row being above the body of the holder, embossed printing strips overlying the buttons and having flanged edges extending beneath them, and a rule strip standing between adjacent embossed strips and resting a its base on the holder 6. The combination of a flexible blanket held in arouate fiorm and having rows of upstanding embossed printing strips overlying the projections and having flanged edges extending beneath them, and a rule strip standing between and bearing against the flanges of adjacent embossed strips and rest ing at its base on the flexible blanket.

T. The combination with a. form holder and printing strips mounted thereon and having converging edge flanges, and a rule strip standing between adjacent printing strips and having its base portion laterally extended to engage the under faces of adjacent flanges.

8. The combination with a form holder. and printing strips mounted thereon and having converging edge flanges and a rule strip between adjacent printing strips and having a complementarily diverging base portion.

9. The combination of a sheet metal blanket having struck-up projections thereon, embossed printing strips resting on the projections and having converging edged flanges extending beneath the projections and a rule strip between adjacent printing strips resting on the blanket and having the base portion made substantially triangular in crosssection to extend beneath and engage the under-hanging flanges of adjacent printing strips.

10. As a new article of manufacture, a rule strip having an upper portion in the form of a parallel sided narrow blade and a lower portion in the form of a bar substantially triangular in cross-section, the lower edge of the blade portion merging with the apex of the triangular portion.

In testimony whereof, I hereunto vaffix my signature.

CLIFTON GHISHOLM. 

